2026 tax year · Oklahoma
Quarterly tax calculator for Oklahoma
A $50,000 1099 year in Oklahoma means about $2,190 to the IRS and $463 to the state, four times a year.
Switching state opens that state's page.
Line 24 of your prior 1040, unlocks the prior-year safe harbor.
Above $150,000 the prior-year target rises to 110%.
Enter what you expect to earn and press Calculate to see each payment.
The Oklahoma payment schedule on $50,000
A single filer with $50,000 of net 1099 profit, taking the standard deduction and paying 90% of this year's liability:
| Due | Income earned | To the IRS | To Oklahoma |
|---|---|---|---|
| April 15, 2026 | Jan 1 - Mar 31 | $2,190 | $463 |
| June 16, 2026 | Apr 1 - May 31 | $2,190 | $463 |
| September 15, 2026 | Jun 1 - Aug 31 | $2,190 | $463 |
| January 15, 2027 | Sep 1 - Dec 31 | $2,190 | $463 |
| Year | $8,759 | $1,850 | |
The Oklahoma side of each payment
Oklahoma taxes the same 1099 profit on 3 graduated brackets topping out at 4.5%, so a second payment goes to the state each quarter, about $463 on the $50,000 example, against $2,056 of Oklahoma income tax for the year.
The 2026 dataset carries the federal 1040-ES dates but not state-specific due dates, so confirm Oklahoma's schedule and voucher with its tax agency, several states do not match the federal calendar exactly.
What each quarter costs at three income levels in Oklahoma
A single filer taking the standard deduction, at three levels of net profit. The federal column moves with the self-employment tax and the federal brackets; the Oklahoma column moves with Oklahoma's own rules, so the two do not scale together. Use the calculator above for the other filing statuses:
| Net 1099 profit | Per quarter to the IRS | Per quarter to Oklahoma | Effective rate |
|---|---|---|---|
| $25,000 | $923 | $227 | 20.5% |
| $50,000 | $2,190 | $463 | 23.6% |
| $100,000 | $5,032 | $933 | 26.5% |
Staying inside the safe harbor
Payments are required once you expect to owe $1,000 or more, which the $50,000 example above does, at $11,788 for the year. Two targets avoid a penalty and you need only the lower; the hub explains both routes and the penalty.
What the rate alone doesn't tell you about Oklahoma
On the 2026 rate itself: simplified to 3 brackets in 2026, top rate reduced from 4.75% to 4.5%.
What a quarter costs in the states Oklahoma borders
On $50,000, Oklahoma charges $2,215 of state income tax. Of the 6 states it borders, Texas is the lightest at nothing at all and Kansas the most expensive at $2,460, a spread of $2,460 on the same income.
| State | State tax per quarter | vs Oklahoma |
|---|---|---|
| Texas | No income tax | −$498 a quarter |
| Arkansas | $421 | −$77 a quarter |
| Colorado | $450 | −$48 a quarter |
| New Mexico | $486 | −$12 a quarter |
| Missouri | $502 | +$3 a quarter |
| Kansas | $554 | +$55 a quarter |
- Texas has no income tax at all, so the same work done there costs $2,215 less in state tax than it does in Oklahoma.
- Arkansas would take $343 less, $1,873 against Oklahoma's $2,215.
- Colorado would take $215 less, $2,000 against Oklahoma's $2,215.
- New Mexico would take $56 less, $2,160 against Oklahoma's $2,215.
- Missouri would take $15 more, $2,230 against Oklahoma's $2,215.
- Kansas would take $245 more, $2,460 against Oklahoma's $2,215.
What this schedule assumes
- Single filer, standard deduction, net 1099 profit after expenses, no W-2 withholding.
- Four equal payments rather than annualised income.
- Oklahoma due dates are not in the 2026 dataset, the dates shown are the federal ones.
Oklahoma quarterly tax questions
How much should I send each quarter in Oklahoma?
On $50,000 of net 1099 profit as a single filer, about $2,190 to the IRS plus roughly $463 to Oklahoma. That is 90% of this year's liability, split four ways.
Does Oklahoma use the same due dates as the IRS?
Oklahoma requires its own estimated payments, but the 2026 dataset carries only the federal 1040-ES dates (April 15, 2026, June 16, 2026, September 15, 2026, January 15, 2027). Confirm Oklahoma's own schedule with its tax agency before assuming they line up.